SIGABRT error - PLEASE HELP - NEEDED URGENTLY

Hello guys pls hep me out, i am new to ios sdk

i am getting a sigabrt error

This is how my app goes:

$ A story board app

$ 1 view controller embedded in a navigation controller

$ 1 TableViewController And 1 more UIViewController

$ When a user clicks button in the first viewcontroller he is pushed to the table view controller

$ 3 Class files (h and m)

$ 1 class file is an object

$2nd class file is table view controller

$ 3rd is UIVIewController

now the problem is that when i click the button in the first viewcontoller i get a sigbrt error telling me that the cell text labeling is wrong and that sigabrt error with a green highlight stays on the code..

I HAVE HIGHLIGHTED THE CODES THAT SHOWS SIGABRT ERROR

My codes:

URL.h

#import <Foundation/Foundation.h>

@interface url : NSObject
@property (nonatomic, strong) NSString *urlstring;
@property (nonatomic, strong) NSString *ns;
@end

url.m:

#import "url.h"

@implementation url
@synthesize urlstring, ns;
@end

load.h;
#import <UIKit/UIKit.h>
#import "url.h"
@interface load : UIViewController
@property (strong, nonatomic) IBOutlet UIWebView *webview;
@property (strong, nonatomic) url *currenturl;
@property (strong, nonatomic) NSString *path;
@property (strong, nonatomic) NSString *finalpath;
@property (strong, nonatomic) NSString *value;
@end

load.m:

#import "load.h"

@interface load ()

@end

@implementation load

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
    }
    return self;
}

- (void)viewDidLoad
{
    NSURL *ul = [NSURL URLWithString:[_currenturl urlstring]];
    [self.webview loadRequest:[NSURLRequest requestWithURL:ul]];
    [super viewDidLoad];
    // Do any additional setup after loading the view.
}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end

wwp.h ( wizards of waverly place i am trying to create an app that shows all the episodes)

#import <UIKit/UIKit.h>


#import "url.h"
#import "load.h"
@interface wwp : UITableViewController <UITableViewDelegate, UITableViewDataSource>
@property (nonatomic, strong) NSDictionary *seasons;
@property (nonatomic, strong) NSArray *keyseasons;
@property (strong, nonatomic) NSString *path;
@property (strong, nonatomic) NSString *finalpath;
@property (strong, nonatomic) NSString *value;
@end

wwp.m

#import "wwp.h"
#import "url.h"
@interface wwp ()

@end

@implementation wwp
@synthesize seasons, keyseasons;
NSMutableArray *urls;
-(void) prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    
    
    
    
    if ([segue.identifier isEqualToString:@"showurl"]) {
        load *dvc = [segue destinationViewController];
        NSIndexPath *path = [self.tableView indexPathForSelectedRow];
        url * c = [urls objectAtIndex:path.row];
        [dvc setCurrenturl:c];
        
    }
}
- (id)initWithStyle:(UITableViewStyle)style
{
    self = [super initWithStyle:style];
    if (self) {
        // Custom initialization
    }
    return self;
}

- (void)viewDidLoad
{
    [super viewDidLoad];
    urls = [[NSMutableArray alloc] init];
    url *link = [[url alloc] init];
    [link setUrlstring:@"E1 Crazy Ten Minute Sale"];
    [link setNs:@"E1 Crazy Ten Minute Sale"];
    [urls addObject:link];
    
    link = [[url alloc] init];
    [link setUrlstring:@"E2 First Kiss"];
    [link setNs:@"E2 First Kiss"];
    [urls addObject:link];
    
    link = [[url alloc] init];
    [link setUrlstring:@"E3 I Almost Drowned in a Chocolate Fountain"];
    [link setNs:@"E3 I Almost Drowned in a Chocolate Fountain"];
    [urls addObject:link];
    
    link = [[url alloc] init];
    [link setUrlstring:@"E4 New Employee"];
    [link setNs:@"E4 New Employee"];
    [urls addObject:link];
    
    link = [[url alloc] init];
    [link setUrlstring:@"E5 Disenchanted Evening"];
    [link setNs:@"E5 Disenchanted Evening"];
    [urls addObject:link];
    
    link = [[url alloc] init];
    [link setUrlstring:@"E6 You Can't Always Get What You Carpet"];
    [link setNs:@"E6 You Can't Always Get What You Carpet"];
    [urls addObject:link];
    
    link = [[url alloc] init];
    [link setUrlstring:@"E7 Alex's Choice"];
    [link setNs:@"E7 Alex's Choice"];
    [urls addObject:link];
    
    link = [[url alloc] init];
    [link setUrlstring:@"E8 Curb Your Dragon"];
    [link setNs:@"E8 Curb Your Dragon"];
    [urls addObject:link];
    
    
    NSString *myfile = [[NSBundle mainBundle] pathForResource:@"SeasonWowp" ofType:@"plist"];
    
    seasons = [[NSDictionary alloc] initWithContentsOfFile:myfile];
    keyseasons = [seasons allKeys];
    

    // Uncomment the following line to preserve selection between presentations.
    // self.clearsSelectionOnViewWillAppear = NO;

    // Uncomment the following line to display an Edit button in the navigation bar for this view controller.
    // self.navigationItem.rightBarButtonItem = self.editButtonItem;
}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

#pragma mark - Table view data source

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{

    // Return the number of sections.
    return 1;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{

    // Return the number of rows in the section.
    return [seasons count];
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *CellIdentifier = @"cell";
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    
    if (nil == cell) {
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
    }
    url *current = [urls objectAtIndex:indexPath.row];
    [cell.textLabel setText:[current ns]];

    
    return cell;
}

/*
// Override to support conditional editing of the table view.
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath
{
    // Return NO if you do not want the specified item to be editable.
    return YES;
}
*/

/*
// Override to support editing the table view.
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
    if (editingStyle == UITableViewCellEditingStyleDelete) {
        // Delete the row from the data source
        [tableView deleteRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationFade];
    }   
    else if (editingStyle == UITableViewCellEditingStyleInsert) {
        // Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view
    }   
}
*/

/*
// Override to support rearranging the table view.
- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)fromIndexPath toIndexPath:(NSIndexPath *)toIndexPath
{
}
*/

/*
// Override to support conditional rearranging of the table view.
- (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath
{
    // Return NO if you do not want the item to be re-orderable.
    return YES;
}
*/

#pragma mark - Table view delegate

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    // Navigation logic may go here. Create and push another view controller.
    /*
     <#DetailViewController#> *detailViewController = [[<#DetailViewController#> alloc] initWithNibName:@"<#Nib name#>" bundle:nil];
     // ...
     // Pass the selected object to the new view controller.
     [self.navigationController pushViewController:detailViewController animated:YES];
     */
}

@end